NPPES file of Aug 9, 2026

Krishna Sankaran, MD

Nephrology Physician · Rockford, IL

Krishna Sankaran, MD is a nephrology physician with a practice address in Rockford, Illinois, and NPI 1558353631, issued on Aug 16, 2005. Check the license (Illinois 036079225, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558353631
Name
Krishna Sankaran
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
036079225 IL
Self-reported in NPPES; status is on the state search
Practice location
612 Roxbury RD, Rockford, IL 61107
Phone
(815) 227-8300
Enumerated
Aug 16, 2005
Record last updated
Apr 22, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(815) 227-8301
Medicaid IDs
31879200 WI
036079225 IL
Medicare enrollment
Enrolled (PECOS I20100123000210); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 612 Roxbury RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kathleen Capriola, APNAdult Health Clinical Nurse Specialist1710975891
  2. Solab Chitrakar, MDInternal Medicine Physician1750934584
  3. Stephanie Gile, APNNurse Practitioner1598216657
  4. Jacqueline May, NPNurse Practitioner1699715706
  5. John Maynard, MDNephrology Physician1730180878
  6. Muamer Mulasmajic, APNNephrology Physician1326526716

Verify Krishna Sankaran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036079225
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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10% more Medicare Part D claims than the average nephrology physician in 2024

1,614 Medicare Part D claims for 359 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Krishna Sankaran1,614
  2. Specialty average1,465

Most prescribed

  1. Calcitriol240 claims
  2. Amlodipine Besylate202 claims
  3. Torsemide162 claims
  4. Losartan Potassium143 claims
  5. Farxiga101 claims
  6. Doxazosin Mesylate84 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Rna OF Rockford, PLLCBeloit, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Krishna Sankaran among 572 nephrology physician records in Illinois

Krishna Sankaran, MD is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1987 · median 2002 among the 433 with a school on file
  • Record last updated2011 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Illinois

There are 572 nephrology physician records in Illinois.

The 8 nephrology physician records with the nearest ZIP codes

  1. Mashood Ahmad, MDRockford, IL 611071043232846
  2. Arooj Fatima, M.DRockford, IL 611071720437338
  3. Stephen KemneleRockford, IL 611071992180806
  4. Krishna K R Manda, MDRockford, IL 611071558593095
  5. John Maynard, MDRockford, IL 611071730180878
  6. Muamer Mulasmajic, APNRockford, IL 611071326526716
  7. Charlene Murdakes, MDRockford, IL 611071992961593
  8. Joanna Niemiec, MDRockford, IL 611071821016791

Common questions

What is Krishna Sankaran, MD's NPI number?

Krishna Sankaran, MD's National Provider Identifier (NPI) is 1558353631, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Krishna Sankaran, MD located?

The NPPES record lists a practice address at 612 Roxbury RD, Rockford, IL, 61107. Phone: (815) 227-8300. Providers update this record themselves, so call before visiting.

How can I verify Krishna Sankaran, MD's license?

NPPES lists Illinois license number 036079225, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Krishna Sankaran, MD prescribe under Medicare Part D?

In 2024, Krishna Sankaran, MD had 1,614 Medicare Part D claims for 359 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.